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Work 100% || Tutorial – How to Fix Operating System Not Found | SmarTutor TV




When you computer is booting, the BIOS will find a system on your hard drive to boot to. If there is not any system, the computer doesn’t know where to go, so it gives you a message for troubleshooting. Below are the main reasons why Windows operating system is missing.
1. The computer input/output system (BIOS) does not detect the hard disk drive.
2. The hard disk is damaged or corrupted.
3. Master Boot Record (MBR) on hard drive is broken. Note that some third-party programs or disk operations can damage an MBR.
4. An incompatible partition is marked as Active.
5. A partition that contains the MBR is no longer active.

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  • Any question?

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  • S AS A

    Author Reply

    My bios does have this mode option at all.


  • Please, the message operating system not found still appear. I can’t reach the Bios 😭😭😭


  • Even if I press the logo button it didn't show logo its all black out… I pressed the bios button too but it didn't work


  • Bro it work from my laptop but after few weeks it's back again in "operating system not found" what should I do?


  • thanks dude its work


  • Thanks


  • I have try it for many time but, It didnt work. Anyone help me..


  • This is one of many explanation. A simple BIOS change can resolve, however Several other issues can cause error. Do not rely on this fix


  • I have two different computers that were working fine. One says dvi no signal I believe and the other says operating system not found or missing. They both were working until the cat jumped up on the one that says dvi. My sister was watching youtube videos before cat jumped up and then nothing says its in sleep mode constantly.


  • Will this make you lose data photos etc????


  • Thank you, but I can't go in to the bios menu, I know what key it is, but it just doesn't work


  • Not show bios in my pc ….


  • Hello, I didn't have this boot mode what's now?


  • How do i change to legacy on boot mode?


  • Hello SmarTutor TV, the music is so awesome. Can you tell me, what is the name of music?


  • Background Music is really awesome


  • thank you ,very usefull


  • it doesn't work, but thank you for this vid, I think that the only problem is that my laptop's hard disk drive is loose, so I actually need to physically fix the hard disk drive, so the only thing I need to do is just to let a computer engineer to fix this, well atleast this vid reminds me about something 😀 tnx anways!!!


  • thank you


  • ta_ngta_ng

    Author Reply

    i tried this but nothing happens, the same "no operating systen found" appears


  • I had this then I went to boot mode then nothing I had a blank screen pls help me


  • NICE WIRKED GOOOD


  • 10/10


  • 100% working , thanks


  • OMG it works on my laptop!! thank youuuu


  • thank you so much


  • after i did this its on the start up menu "acer" how long will this take until the screen will load to windows? pls help


  • what to press on step 3


  • name music ?


  • Thankyou i fix my laptop.


  • My Tobisha laptop won’t let me go into the boot tab as soon as I go into the next section it freezes what should I do?


  • Still did not worked


  • Thanks you save me


  • F2 did not work for me


  • Can you give us tutorial on how to fix keyboard not working out,please


  • Thank you so much 🙈
    It works 😊


  • Unplug hard drive then plug back in


  • t expliques comme un con tu n y connais rien alcoolique


  • dont work in my laptop


  • thanks a lot i helped a lot


  • This is really works! Thank you so much!


  • to the person behind this video, I will thank you so much for making this kind of video especially right now, the technicians aren’t open due to covid 19. more power to your channel!